H03D 3/009
Compensating quadrature phase or amplitude imbalances
Official title: {Compensating quadrature phase or amplitude imbalances}
H03D3/009 (Compensating quadrature phase or amplitude imbalances) appears on 316 US grants and 268 published applications in this corpus.
Search patents in H03D- Granted patents
- 316
- Published applications
- 268
- Assignees
- 156
- Inventors
- 596
- Latest grant
- 16 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 2 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 3 | 0 |
| 1996 | 3 | 0 |
| 1997 | 2 | 0 |
| 1998 | 9 | 0 |
| 1999 | 6 | 0 |
| 2000 | 11 | 0 |
| 2001 | 6 | 1 |
| 2002 | 7 | 14 |
| 2003 | 6 | 13 |
| 2004 | 16 | 22 |
| 2005 | 11 | 14 |
| 2006 | 12 | 15 |
| 2007 | 15 | 15 |
| 2008 | 6 | 15 |
| 2009 | 22 | 13 |
| 2010 | 13 | 16 |
| 2011 | 14 | 12 |
| 2012 | 18 | 11 |
| 2013 | 23 | 11 |
| 2014 | 15 | 16 |
| 2015 | 16 | 11 |
| 2016 | 14 | 12 |
| 2017 | 4 | 4 |
| 2018 | 8 | 3 |
| 2019 | 3 | 15 |
| 2020 | 13 | 10 |
| 2021 | 9 | 4 |
| 2022 | 5 | 5 |
| 2023 | 3 | 7 |
| 2024 | 5 | 2 |
| 2025 | 8 | 6 |
| 2026 | 3 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Dual-polarization and dual-band radio frequency (RF) transceivers with leakage and image rejection calibration16 Jun 2026US 12,658,854 B1PseudolithIC, Inc.
- Coherence bandwidth signaling for frequency domain imbalance correction26 May 2026US 12,641,585 B2QUALCOMM Incorporated
- Circuit and method to detect faults of a MEMS device including an oscillating mass5 May 2026US 12,620,935 B2STMicroelectronics International N. V.
- Precision rate demodulation for a vibrating gyroscope30 Dec 2025US 12,510,359 B2STMicroelectronics International N. V.
- Active mixers with enhanced image rejection ratio (IRR)4 Nov 2025US 12,463,592 B2QUALCOMM Incorporated
- A local oscillator (lo) double edge-tuning iq imbalance calibration technique for modern-day transceivers13 Aug 2026US 2026/0238162 A1King Fahd University of Petroleum and Minerals
- Precision rate demodulation for a vibrating gyroscope23 Oct 2025US 2025/0327665 A1STMicroelectronics International N. V.
- Receiver28 Aug 2025US 2025/0274152 A1GCT Semiconductor, Inc.
- Iq phase imbalance calibration using sampling clock delay adjustment19 Jun 2025US 2025/0202428 A1GLOBALFOUNDRIES U. S. Inc.
- Frequency dependent residual sideband distortion cancellation6 Mar 2025US 2025/0080253 A1QUALCOMM Incorporated
Most cited
By later US patents
- Compensation method for I/Q channel imbalance errors177US 5,705,949 AU. S. Robotics Access Corp. · 1998
- Digital subharmonic sampling down-converter141US 4,888,557 AGeneral Electric Company · 1989
- Digitally compensated direct conversion receiver135US 5,579,347 ATelefonaktiebolaget LM Ericsson · 1996
- System and method for an image rejecting single conversion tuner with phase error correction128US 6,714,776 B1Microtune (Texas), L.P. · 2004
- Apparatus and method for digital image correction in a receiver126US 7,142,835 B2Silicon Laboratories Inc. · 2006